<template>
  <div class="login">
    <!-- model定义表单对象数据 -->
    <!-- 1.1 校验第一步给el-form组件绑定rules属性 -->
    <el-form ref="loginform" :model="loginForm" class="container" :rules="myrules">
      <!-- 1.2 给el-form-item 加上prop属性，属性的值就是需要校验的字段名 -->
      <el-form-item>
        <div class="avatar">
          <img src="../assets/avatar.jpg" alt="">
        </div>
      </el-form-item>
      <el-form-item prop="username">
        <!-- prefix-icon 属性添加图标 -->
        <el-input v-model="loginForm.username" prefix-icon="myicon myicon-user"></el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input v-model="loginForm.password" prefix-icon="myicon myicon-key" type="password"></el-input>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" class="login-btn">登录</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>
<script>
export default {
  data () {
    return {
      // 定义表单对象数据
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      // 定义校验规则
      myrules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' }
        ]
      }
    }
  }
}
</script>
<style lang="scss" scoped>
// scoped 作用就是让这个样式变成局部样式，就是只能在当前组件生效
// 原理是编译的时候，给每个css选择器加一个随机生成的字符串作为属性
.login {
  position: fixed;
  width: 100%;
  height: 100%;
  background-color: #2f4050;

  .container {
    position: absolute;
    left: 0;
    right: 0;
    width: 400px;
    padding: 0px 40px 15px 40px;
    margin: 200px auto;
    background: white;
    .avatar {
      position: relative;
      left: 50%;
      width: 120px;
      height: 120px;
      margin-left: -60px;
      margin-top: -60px;
      box-sizing: border-box;
      border-radius: 50%;
      border: 10px solid #fff;
      box-shadow: 0 1px 5px #ccc;
      overflow: hidden;
    }
    .login-btn {
      width: 100%;
    }
  }
}
</style>
